Re: [PERFORM] Intermittent hangs with 9.2

2013-09-20 Thread David Whittaker
n and post back, but if you don't hear from me again you can assume the problem is solved. Thank you all again for the help. -Dave On Fri, Sep 13, 2013 at 11:05 AM, David Whittaker wrote: > > > > On Fri, Sep 13, 2013 at 10:52 AM, Merlin Moncure wrote: > >> On Thu, Sep

Re: [PERFORM] Intermittent hangs with 9.2

2013-09-13 Thread David Whittaker
On Fri, Sep 13, 2013 at 10:52 AM, Merlin Moncure wrote: > On Thu, Sep 12, 2013 at 3:06 PM, David Whittaker wrote: > > Hi All, > > > > We lowered shared_buffers to 8G and increased effective_cache_size > > accordingly. So far, we haven't seen any issues since t

Re: [PERFORM] Intermittent hangs with 9.2

2013-09-12 Thread David Whittaker
Hi All, We lowered shared_buffers to 8G and increased effective_cache_size accordingly. So far, we haven't seen any issues since the adjustment. The issues have come and gone in the past, so I'm not convinced it won't crop up again, but I think the best course is to wait a week or so and see how

[PERFORM] Intermittent hangs with 9.2

2013-09-10 Thread David Whittaker
Hi Jeff On Tue, Sep 10, 2013 at 1:44 PM, Jeff Janes wrote: > On Tue, Sep 10, 2013 at 8:04 AM, David Whittaker wrote: > >> Hi All, >> >> I've been seeing a strange issue with our Postgres install for about a >> year now, and I was hoping someone might be ab

[PERFORM] Intermittent hangs with 9.2

2013-09-10 Thread David Whittaker
Hi Ken, On Tue, Sep 10, 2013 at 11:33 AM, k...@rice.edu wrote: > On Tue, Sep 10, 2013 at 11:04:21AM -0400, David Whittaker wrote: > > Hi All, > > > > I've been seeing a strange issue with our Postgres install for about a > year > > now, and I was hoping som

[PERFORM] Intermittent hangs with 9.2

2013-09-10 Thread David Whittaker
Hi Andrew, On Tue, Sep 10, 2013 at 11:26 AM, Andrew Dunstan wrote: > > On 09/10/2013 11:04 AM, David Whittaker wrote: > >> >> Hi All, >> >> I've been seeing a strange issue with our Postgres install for about a >> year now, and I was hoping someone mi

[PERFORM] Intermittent hangs with 9.2

2013-09-10 Thread David Whittaker
Hi All, I've been seeing a strange issue with our Postgres install for about a year now, and I was hoping someone might be able to help point me at the cause. At what seem like fairly random intervals Postgres will become unresponsive to the 3 application nodes it services. These periods tend to l

Re: [PERFORM] postgresql.conf recommendations

2013-02-06 Thread David Whittaker
oint I don't think THP is the root cause though, so I'm curious to see if anyone else gets positive results from disabling it. We definitely haven't seen any performance hit from turning it off. > On Wed, Feb 6, 2013 at 10:42 AM, David Whittaker wrote: > >> Josh/Johnny

Re: [PERFORM] postgresql.conf recommendations

2013-02-06 Thread David Whittaker
Josh/Johnny, We've been seeing a similar problem as well, and had also figured THP was involved. We found this in syslog: https://gist.github.com/davewhittaker/4723285, which led us to disable THP 2 days ago. At first the results seemed good. In particular, our issues always seemed interrupt re